Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
0500194heavily pollutedgood261excellent
0400195heavily pollutedgood271excellent
0300179heavily pollutedgood241excellent
0200179heavily pollutedgood251excellent
0100171heavily pollutedgood241excellent
0000164heavily pollutedgood231excellent
2300146heavily pollutedgood231excellent
2200125moderately pollutedexcellent191excellent
2100113moderately pollutedexcellent161excellent
2000143heavily pollutedgood211excellent
1900145heavily pollutedexcellent151excellent
180091lightly pollutedexcellent121excellent
170089lightly pollutedexcellent131excellent
160081lightly pollutedexcellent111excellent
150087lightly pollutedexcellent121excellent
140081lightly pollutedexcellent111excellent
130059goodexcellent71excellent
120087lightly pollutedexcellent111excellent
1100132moderately pollutedexcellent171excellent
1000142heavily pollutedexcellent171excellent
0900143heavily pollutedexcellent201excellent
0800165heavily pollutedexcellent171excellent
0700153heavily pollutedexcellent171excellent
0600147heavily pollutedexcellent181excellent